OASIS+ Phase II Support

Qualify • Expand • Compete • Grow

OASIS+ is GSA’s next generation governmentwide professional services IDIQ  program designed to streamline  federal procurement across multiple service domains. Whether you are pursuing OASIS+ for the first time or expanding into additional domains, Coley GCS helps you turn OASIS+ into a long term growth platform, not an administrative burden. Our consultants also understand that OASIS+ submissions and modifications may involve FCI, CUI, CPARS, PWS/SOW documents, and other sensitive contract information.

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Coley GCS Provides Trusted Guidance for Federal Contractors Pursuing Growth Through GSA vehicles.

Strategy-First Approach

Compliance Smart Execution

Built for Long-Term Growth

Why OASIS+ Phase II Matters

OASIS+ is positioned to become one of the federal government’s primary contract vehicles for complex professional services and mission outcomes. It will channel billions of dollars in federal professional services spending over the next decade. Phase II expands opportunities across domains and increases the importance of readiness, alignment, and a clear plan for growth after award.

Governmentwide Access

Compete for task orders across federal agencies.

Flexible With Most Contract Types

Supports FFP, T & M, cost reimbursement, and hybrids.

Ten Year Runway

Long ordering period supports sustainable growth.

Award Equals Access

Revenue comes from pursuing and winning task orders.

OASIS+ Works Like GSA MAS, But Exclusively for Professional Services

OASIS+ is increasingly operating more like the GSA Multiple Award Schedule in how contractors enter, maintain, and expand scope over time. That means long term winners treat OASIS+ as an actively managed growth channel, not a one time submission. That also means documentation, compliance and contract records must be managed carefully.

What this looks like in practice

  • Continuous opportunity to pursue entry as capabilities mature
  • Growth after award through modifications and domain expansion
  • Qualification first, competition later
  • Ongoing compliance and contract management to stay competitive
  • Careful handling of sensitive contract records, including FCI, CUI, CPARS, and PWS/SOW support

Get OASIS+ Phase II Support

For New OASIS+ Offerors

We help you build a clear, defensible path to qualification by aligning your capabilities to the right domain or domains and presenting supporting evidence in a compliant, competitive way. Our consultants are experienced in supporting offer documentation that may involve sensitive contract and past performance materials.

Domain Alignment Strategy

Identify where you truly qualify and where you can compete.

Past Performance Mapping

Connect relevant work to OASIS+ requirements and evaluation expectations.

Compliance and Documentation Readiness

Reduce rework and risk by building a clean, organized submission approach.

Submission Strategy Support
A plan built for both award and long term competitiveness.

For Existing OASIS+ Awardees

Phase II creates a major opportunity to expand into additional domains and strengthen your pipeline, if your operational capacity, governance, and proof points support it. Coley GCS helps awardees evaluate expansion while managing the supporting records needed for a complete and defensible submission.

Domain Expansion Evaluation

Assess expansion targets and build a roadmap based on your capabilities.

Modifications Support

Support changes that align with your growth strategy.

Ongoing Contract Management

Keep your OASIS+ foundation strong and audit ready.

Task Order Readiness

Positioning support to improve competitiveness as opportunities emerge.

Is OASIS+ The Right Fit?

OASIS+ Phase II is a strong fit for firms that deliver professional or technical services to federal agencies and want a scalable path to larger task order opportunities.

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Growing Federal Contractors

Ready to move beyond single award opportunities.

Domain-Aligned Providers

Strong capabilities and credible proof points.

Teams That Want a Plan

A strategy for compliance, expansion, and task order wins.

How Competition Works on OASIS+

OASIS+ is a two step environment.

First, you earn the contract level award to qualify to compete. Second, you compete for task orders within your awarded domain or domains.

Winning the IDIQ is not a revenue guarantee. It is the gateway to compete for future work, and success depends on strategy, readiness, and execution.  Coley GCS helps contractors plan beyond award by connecting qualification, documentation, compliance, and task order positioning.

Not Sure If You Qualify?

If you are evaluating OASIS+ Phase II or planning to expand your OASIS+ footprint, let’s talk through your best path forward.

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How Coley GCS Can Help You With OASIS+

Our team of advisors helps contractors navigate OASIS+ with a strategy-first approach that supports qualification and long term success on the vehicle.  Our consultants also understand the safeguards needed when OASIS+ work involves FCI, CUI, CPARS, PWS/SOW documents, and sensitive contract information.

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Strategic alignment

Focus on domains that match your real strengths.

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Evidence based positioning

Organize proof points to support evaluators.

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Compliance smart execution

Reduce rework and avoid preventable issues.

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Built for long term growth

Support beyond award, including expansion planning.

OASIS+ Frequently Asked Questions

What is Oasis+?

OASIS+ is GSA’s next-generation governmentwide, multiple-award IDIQ contract for acquiring professional services. It stands for One Acquisition Solution for Integrated Services Plus.  It replaces and consolidates legacy vehicles (OASIS, OASIS SB, and related variants) into a single, scalable platform.

How is OASIS+ structured?

OASIS+ is organized around 13 functional domains, each representing a broad service area. Vendors are awarded into specific domains and compete for task orders within those domains.

Key structural features:

  • Governmentwide scope (all federal agencies)
  • Flexible contract types (FFP, T&M, Cost-Reimbursement, Hybrid)
  • No ceiling on task order size (subject to domain scope)
  • 10-year ordering period (base + options)
Who can use OASIS+?

Any federal agency may place task orders under OASIS+. The vehicle is intended to reduce acquisition lead time while maintaining competition, compliance, and pricing integrity.

Comparison between OASIS+ and the GSA Multiple Award Schedule (MAS)

With the move to continuous onboarding and domain expansion, OASIS+ now operates much more like the GSA Multiple Award Schedule (MAS)—not as a one-time contract opportunity, but as a living acquisition platform.

  1. Continuous Entry for New Contractors
    Like MAS, OASIS+ remains open to qualified firms over time rather than closing after a single award cycle.
    • MAS: Vendors can submit new offers at any time
    • OASIS+: Vendors can be added through ongoing on-ramps

    Impact: Firms no longer need to “wait for the next vehicle.” If they are ready, they can pursue entry when their capabilities mature.

  2. Expandable Scope Through Modifications
    Both vehicles allow scope expansion after award.
    • MAS: Contractors add SINs through contract modifications
    • OASIS+: Contractors can add new functional domains via modification

    Impact: Contractors can grow with their federal customers instead of being locked into their original scope.

  3. Qualification First, Competition Later
    Neither vehicle guarantees work.
    • MAS: Schedule contract qualifies a firm to receive RFQs
    • OASIS+: IDIQ award qualifies a firm to compete for task orders

    Impact: The contract is an access credential, not a revenue guarantee. Success depends on capture, pricing, and performance.

  4. Governmentwide Access
    Both vehicles are governmentwide acquisition solutions.
    • Used by civilian and defense agencies
    • Designed to shorten acquisition timelines
    • Pre-vetted contractors reduce buyer risk

    Impact: Once awarded, contractors gain visibility across the entire federal marketplace.

  5. Emphasis on Compliance and Ongoing Contract Management
    Both contracts require active maintenance, not “set it and forget it” management. Shared expectations include:
    • Updated representations and certifications
    • Pricing integrity and audit readiness
    • Performance monitoring
    • Timely contract modifications

    Impact: Long-term success favors firms with disciplined contract administration.

  6. Platform for Long-Term Growth
    MAS and OASIS+ are both designed to support multi-year federal growth strategies.
    • MAS: Broad commercial-style purchasing
    • OASIS+: Complex, integrated professional services

    Impact: Many firms will hold both contracts, using MAS for transactional work and OASIS+ for large, mission-critical task orders.

  7. Key Difference (Still Important)
    While they now operate similarly, their purpose differs:
    • MAS = standardized commercial services and products
    • OASIS+ = complex, outcomes-based professional services

Think of OASIS+ as “MAS for high-end services.”

How long does OASIS+ last?
OASIS+ has a total potential Period of Performance of 10 years. This consists of an initial 5-year base period and a 5-year option period, allowing for task orders to be placed for a decade from award. The master contracts themselves have a 10-year duration, though specific award and end dates vary by contract pool (like small business, unrestricted).
How many OASIS + domains are there?

OASIS+ is structured around 13 functional domains.

The 13 OASIS+ Domains are:

  • Technical and Engineering
  • Research and Development
  • Management and Advisory
  • Environmental
  • Intelligence Services
  • Enterprise Solutions
  • Facilities Services
  • Logistics
  • Business Administration (New)
  • Financial Services (New)
  • Human Capital (New)
  • Marketing and Public Relations (New)
  • Social Services (New)
Does an Oasis+ award guarantee revenue?
No. Award provides access to compete for task orders. A capture strategy is critical to turning access into wins.
Who should pursue an OASIS+ Phase II award?

OASIS+ Phase II is well-suited for firms that:

  • Provide professional or technical services
  • Support federal civilian or defense agencies
  • Can demonstrate relevant experience, systems, and controls
  • Want access to large, long-term IDIQ task order opportunities
  • Both small businesses and other-than-small businesses are eligible, depending on domain and solicitation structure.
How Will Government Contractors Benefit from OASIS+

OASIS+ is expected to become one of the government’s primary professional services vehicles, channeling billions of dollars in federal spending over the next decade. For contractors, it represents:

  • Long-term market access
  • Increased visibility to buyers
  • A standardized path to compete for complex work
How can contractors prepare for OASIS+?

Contractors should:

  • Assess domain alignment and past performance
  • Prepare for Phase II solicitation requirements
  • Align internal systems (pricing, accounting, compliance)
  • Develop a task order capture strategy early

Ready to Discuss OASIS+ Phase II ?

If you are evaluating OASIS+ Phase II or planning to expand your OASIS+ footprint, let’s talk through your best path forward.

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